sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h

   1 /* -mlong-double-64 compatibility mode macros.  */
   2
   3 #include <nldbl-abi.h>
   4 #ifndef LONG_DOUBLE_COMPAT_VERSION
   5 # error "nldbl-abi.h must define LONG_DOUBLE_COMPAT_VERSION"
   6 #endif
   7
   8 #include <math.h>
   9 #include <math/math_private.h>
  10 #include <shlib-compat.h>
  11 #define LONG_DOUBLE_COMPAT(lib, introduced) \
  12   SHLIB_COMPAT(lib, introduced, LONG_DOUBLE_COMPAT_VERSION)
  13 #define long_double_symbol(lib, local, symbol) \
  14   long_double_symbol_1 (lib, local, symbol, LONG_DOUBLE_COMPAT_VERSION)
  15 #if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING
  16 # define ldbl_hidden_def(local, name) libc_hidden_ver (local, name)
  17 # define ldbl_strong_alias(name, aliasname) \
  18   strong_alias (name, __GL_##name##_##aliasname) \
  19   long_double_symbol (libc, __GL_##name##_##aliasname, aliasname);
  20 # define ldbl_weak_alias(name, aliasname) \
  21   weak_alias (name, __GL_##name##_##aliasname) \
  22   long_double_symbol (libc, __GL_##name##_##aliasname, aliasname);
  23 # define long_double_symbol_1(lib, local, symbol, version) \
  24   versioned_symbol (lib, local, symbol, version)
  25 #elif defined HAVE_WEAK_SYMBOLS
  26 # define ldbl_hidden_def(local, name) libc_hidden_def (name)
  27 # define ldbl_strong_alias(name, aliasname) strong_alias (name, aliasname)
  28 # define ldbl_weak_alias(name, aliasname) weak_alias (name, aliasname)
  29 /* Note that weak_alias cannot be used - it is defined to nothing
  30    in most of the files.  */
  31 # define long_double_symbol_1(lib, local, symbol, version) \
  32   _weak_alias (local, symbol)
  33 #else
  34 # define ldbl_hidden_def(local, name) libc_hidden_def (name)
  35 # define ldbl_strong_alias(name, aliasname) strong_alias (name, aliasname)
  36 # define ldbl_weak_alias(name, aliasname) strong_alias (name, aliasname)
  37 # define long_double_symbol_1(lib, local, symbol, version) \
  38   strong_alias (local, symbol)
  39 #endif
  40
  41 /* Set temporarily to non-zero if long double should be considered
  42    the same as double.  */
  43 extern __thread int __no_long_double attribute_tls_model_ie attribute_hidden;
  44 #define __ldbl_is_dbl __builtin_expect (__no_long_double, 0)